Home / 7,745.80-11,613.66-4,285.48

Finding the Fourth Proportional to 7,745.80, 11,613.66 and 4,285.48

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Solution

The fourth proportional to 7,745.80, 11,613.66 and 4,285.48 is: 6,425.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.80 : 11,613.66 = 4,285.48 : x
  2. Step 2: Convert to fraction form
    7,745.80/11,613.66 = 4,285.48/x
  3. Step 3: Cross multiply
    7,745.80x = 11,613.66 × 4,285.48
  4. Step 4: Simplify right side
    7,745.80x = 49,770,107.66
  5. Step 5: Solve for x
    x = 49,770,107.66/7,745.80
  6. Step 6: Final answer
    x = 6,425.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.